Underwater towing device



FIG. 1 is a front top perspective view of an underwater towing device showing the new design;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a rear elevational view thereof;

FIG. 4 is a left elevational view thereof, the right elevational view being the mirror image;

FIG. 5 is a top plan view thereof; and,

FIG. 6 is a bottom plan view thereof.

The broken lines shown in FIGS. 1-6 depict portions of the underwater towing device that form no part of the design. 

CLAIM The ornamental design for an underwater towing device, as shown and described. 